Ice-machine compressor.



PATENTED FEB 41, 1908, G. W. MILES.

RBSSOR, APPLICATION FILED MAR, 0, 1900.

ICE MACHINE COMP v UNITED STATES PATENT enrich.

CASPER W. MILES, 0F CINCINNATI, OHIO.

ICE-MACHINE COMPRESSOR.

No. 878,483. I

Original application filed May 1, 1905, Serial No. 258.198-

T 0 all whom it may 'concern:

Be it known that I, Casrnn W. M nus, a

citizen of the United States, residing at Cincinnati, in the county of Hamilton and State of Ohio, have invented certain new and useful improvements in lee-Machine Compressors, of which the following is a specification.

My invention relates to-iinprovcmcnts in ice machine compressors.

One of its objects is to provide an ice machine compressor with improved cooling mechanism, which may be readily removed from the compressor to give access thereto, or replaced by new parts if damaged by freezing of water therein or otherwise.

Another object is to provide improved means for securing the valve cages in place in the plunger and cylinder head so that they are not liable to become loosened by the vibration of the mechanism.

It further consists in certain details of form, combination and arrangement, all of which will be more fully set forth in the through a compressor cylinder embodying my improvements Fig. 2 is a to plan view .of the valve cage located in the cy inder head,

Fig. 3 is a top plan view of the dome or cap of the cooling jacket. Fig. 4 is a bottom plan view of the valve cage located in the plunger. Fig. 5 is a detail sectional view showing a modification of Fig. 1.

In the accompanying drawings A- represents the cylinder-of an ice machine cornressor. 'The base B on which the cylinder 13 mounted preferably serves as a housing for the pitman l) and crank of the driving shaft, and also as an inlet passage for the gas on its Way to the cylinder.

C represents an annular flange projecting from the cylinder at a point midway between s ecification of Letters mi-tent.

Divided and this appllcatlou filed March 9. 1906. Serial No. 305.020.

Patented Feb. 4;, 1908.

water from the jacket permitted to over-- ilow or escape through pipe G.

The lower end of the cylinder is kept cool by the circulation of thcrool gas passing into the cylinder, whilc thc upper cud of the cylinder is highly heated due to the compression of the gas therein, and the llange (,3 1s located at approximately thc neutral point between the hot and cold ends of the cylinder, so that the lower cud of the eylinder may remain cool, and the water of the jacket may take up and carry the heat from the upper end of the cylinder, and attain the maximum BillClOlHf) in so doing, by reason of the tendency of the water to rise on becoming heated. It will be noted that the jacket sections can be readily detz'ichcd ,and replaced by new parts should occasion re uire it.

he upper end of the cylinder is closed by a head composed of a disk or ring shaped section H and a dome or cap shaped section H.

I re resents the valve cage in which is locate( the exit valve J. The cage i is threaded into the section ll, and in ordcr to insure that the same shall not become loose due to the constant vibration of the cylinder in use, I preferably provide a ilangei which seats on the upper face ofsection H, and is locked thereto to prevent the unscrewing of the cage by means of the stud bolts K, which pass through perforations t" in section ll and flange i, and also through perforations in the flange of the cap section H, the parts ll '2' and H being'clainped to the cylinder from which the stud bolts K project by means ol nuts it. Thus an ossibility ol the cage becoming unscrewed from the section ll is avoided, and the valve J and its seat j are firmly locked in position.

The plunger M, is rcciprocated backward and forward in the cylinder by means of a pitman rod or link 6: pivoted thereto by a rbd or pin i). This plunger is composed of a disk or ring section N and a shell or cylindrical section N, which are secured together by means of screws a.

0 represents the inlet valve which is mounted in a cage P which is'thrcaded into the plunger section N.

p re resents an annular ilange projecting from t is cage P and perforated at p for the passage of the shanks oi" thc screws a, by means of which the flange p'is [lrmly clamped between sections N N and all possibility of the cage becoming unscrewed from section N meted.

1 and seated in siec'ess it formed at the pioyed to prevent the unscrewing of the cage in the plunger.

The was outiet i e ris referabl threadthe section H of the c hnder head .Q I 1 u may if d s1" d be otherwise attached thereto by a tgomt.

The 1118251512181 scribed M cepehi'e of considerable modlfication Without de ez'tine' from the rlncl 1e of c v ZIlY lHVI1tZOIL Having described ne invention what I e f cimm is;

he modification Fig. 5 I have shown 5 the 'J? tie-trowel than the-flange '7 0f- 11 herein shown and de- 1. in an ice machine compressor, a plunge? comprising a ring section and a cylindrical section, a valve cage threaded into the ring section and provided With-951i annular flange clamped in the joint between the ring sec-- tion and cylindrical section, and means 501: clamping said ring section and cylindricei sectlon together. i

2. In an ice machine compressor, 2, cyiindr, a, cylinder head comprisiiig & ring section an'de cap section; 2, valve cage threaded into said ring section and provided with annular flange clam ed in the joint between the ring section an cap section, and means 

